Most bloggers are trying to find out ways that they can make enough money to cover their hosting costs and anything else is just Gravy. Adsense has been the method of revenue to date. Its not a lot of money since you only get cents for a click and you’re splitting it with the hosting blog service too. But if you have a blog that gets a lot of traffic, and the people who read it are into clicking on the ads they see, it can be a nice side revenue stream. If you want to get involved with a network that supports your blog with adsense revenue, check out TrendyFriendly.com.